Meat saw



June 7, 1927Iv A1,631,365

G. F. FExsTER MEAT SAW Filed Nov. 1v, 1925 ven i or.

`further-objectV is to yprovide -such `canf-be heldV and operatedbyone hand, leavportion,

Patented June 7, 1927.

GEORGE n: EISTER, 'on ivrjAnIcorA, Cnniioaivin.

i MEAT saw.

Application le. November 17, 19255. Serial No. .69,689.1v

My invention a relates to power Y driven saws especially adapted for use by butchers-in cutting the bones occurring in meat.

Therprincipalrobject of' my invention is to provide a simple'l and easily portable power driven saw; to takethe place ofl the usual hand' saws'vcommonlylus'ed by butchers. rA asaw which ring: the oth-erfree;toghold: the Work inthe same manner as isfdone whenusing a hand saw: Astill furtherxobject. is to.v providev suitable guards for the saw,A suchguards `having the. double function ofproviding a rest' to steady the saw andj'off inclosing Ato .prevent bone; chipsA troni' getting upon and into: the meat, and 'tof preventV the sawfrom cuttinginto f or tearing: the meat.. rlhe guards also 'protect .the operator: -from injury through contactwithy thesaw. i

These and other.obfectsxandx advantages of: the .invention will be.v apparent;.-,fronr the following speci lication, which shouldy be 1 rea-d with theunderst-anding that the'` form, proandarrangement ofthe several parts of' the: devicemay; be-varied, within the limits'o the claims. hereto appended, without departing` from the spirit of the invention.. ask expressedin said claims@l It is alsot to be understood although v'especially' adapted: for .Inea saws, may beembodied'in saws for other` purposes, without-'material' change.- f `With this in view a preferred embodiment/of: myinvention will now be described fully with reference to t-he accompanying drawings, whereinvzf# f Fig, 1 is a partly broken 'front elevation kof myv meat saw.l

Fig is a1 centrallvertlical section-tl'iei'eof, the driving motor andcable being:V shownin elevation.

Eig isa plan View, themotor and; drive shaft being omittedr lnj the drawings, the vreterence numeral 1 designates -a' circular saw, which issecured, as by means of screwsy 1", Fig;-1tora hub-2, and said hub` is fixed'upon orl for-.medi integrally with a. shaft 3, Fig.

ably mounted in a journali members. This .Eig 1.

that my invention,

by which :it may be.

2,:whiclr is, rotat-.

journal'memberhasa square or 'rectangular portion lying:l between 1 two 1 spaced flanges 6,. and-adapted tosslide. vertically, without rotating,l .in ai guide Way preferably formed .as af slct1.7in1aplate 8,. said'Y guide way or slot. extendingdownwardly from; the; ap-

proximate ycenter of saidplate.

The plate 8 formstheback otra-guard or .housing forthe saw 1,1 the:l front off' said housing: beingv formed: byl a; secondqxplate 9 which; isfconnected` with said bac'kplate 8 at. its top, asi shown at 10, and abouthalf way- 1down-itssides, as. indicated atv 11 in l The lower portionsv of' thepplates 8; and@ are separated by a narrow space 12, lig;. 2;just wide 'eiioughftozallow the saw 1 .to protrude. through it; when said saw .is ymoved downwardly in; the guideslot 7j, as

shown by dottedilinesiin Fig; 1. .The yplates 8. andl 9:1 are inclin'edV withf respect .to each other, as; show-ny iniFigzQ, their lower` portions being. clbsely adjacent .toA the. sides` of the saw,andl their: upperportions being spaced therefrom.l Af segmental flange; or rim,l 8f may loe-'secured tothe lower portion of, the-plate 8,. as shown in Fig-2.

y They journal member 4r is norinallypietained; at.` thefupper` limit off its. travelvin the slot 7 byanUeshapedispringgl; Figs-1 andf, oney endot` which'is connected with a pin 14 secured to. the top; of' said journal member,

1and-the.4 otherend' connected with.` apin 15 projecting `from the back plate;v 8. :Handle portionsv 16 are preferably formed upon,- the twoyl'egszof the spring; 13, by whichzit may bef grasped conveniently --iiiz` one" hand vfrs a:*preiferred'` means" for drivingV the saw. l, I have slio'wirI invFig.. 2 a portable 'motor 17, connected with the shaft' 3 by'av flexible di'ive'shat or cable 18:of well known form; The motor 17Iv may bel supported in any; desiredffinanner. For eXa-mple, .I Vhave shown 'itas providedy with :a-.strap or loop- 19 slungy `lover- .thef armi or shou'lder'- of the operator,y or-liungupon any other,l convenient 'support-iy A switchis injdicafted at QO for controllingi; the-motor- It ispintendedthat devicewill be used, in #inea-tl v cuttinggexactly as the Abutchers hand lsaw isf used;- at present; i.` e'. the meat itself will be cut with a knifedown to and around the bone, and my saw then used for cutting through vthe bone. This is illustrated in vli`ig-2, where 21 designates the uncut portion of themeat, 22 is the bone, and

j 23 indicates a port-ion of the slice being 'cut off, and whichhas already been cut, with a knife, down to the bone'22 and allowed to fold down away from the uncut portion 21...'`

The operator, holdingmy device .in one hand by'grasping th'ehandle portions 16 of the spring`18, rests the lower edges ofthe plates 8 and 9 upon the top of the bone 22 between the uncut portion21 and the partially cut slice 23, the front plate 9 resting againstsaid uncut portion, and then, by compressing o rV squeezing together-the handles 16, moves the Y saw 1 downwardly against and through the'-bone,`the housing vformed by the plates 8 and 9 remaining in its originalpositionwith its bottom edge resting upon the bone.' Vhen thejsaw has passed through the bone,.the spring 13 returns Qit upwardly to its original position lin whichit is f ully inclosed by" said housing. g By making the plate 9 andthe bottom flange 8 of the plate `8 of very thin, vstiff metal, such as hard steel, the thickness of thee-ntire lower edge 'of thedevice is small enough to allow it -to rest'upon'the bone at the bottom ofthe knife cut, and the thinness of said plate 9 also enables the. saw to cut the bone so clo'sejto the planefof the cut surface of the meat that therenis no appreciable difference. "The inclined? relation of the plates 8 and r9 permits ample clearance for the hub 2 and thefupperportionof the saw, besides 'ad'dingt'o thef'stiffness ofthe housing. Moreover, the inclining of the front plate`9 with respect to the saw causes said saw to undercut at a slight, angle, so that at the lower sidefof the bone the cut surface thereof will .not protrudebeyond'the meat by even so and.' their top edges being more widely A 1.' Ar sawing device oomprisingarotating saw; a housing therefor form'edof a pair of spaced plates between which the saw is po-v sitioned, thev bottom edges of said plates lying closely adjacent to the sides of the saw and being adapted' to rest upon the work,-

spaced from said saw'than said bottom edges; a -journal'member in which said saw isfcarriedg'guidefmeans associated with one of.

said plates andin'which said-,journal mem.-

vthel ent-ire device; f

ber is mounted for movement toward and away from the work; and means for rotating said saw. y

2. A sawing device comprising a rotating saw; a housing therefor formed of a pair of plates inclined with respect to each other and between. which the saw is positioned,

the bottom edges of said plates lying closely adjacent to the sides of the saw andv being adapted to rest upon the work, and theirtop edges beinginor'e widely spaced from said `s2`1A-)y';than said bottom edges and connected together over` the top of the saw; a journal member 'in which-said saw is carried; guide means associated with one of said plates and in which said'journal member is mounted for movement toward and away from the work; and means for rotating said saw.

3. A sawing device comprising a rotating shaft; a saw-securedto'one'end thereof; a journalfmember in which ysaid shaft is ro- S il tatably mounted; a plate lying substantially parallel tothe rear face'of said saw and having a slot extendingfrom its approximate Ycenter toward its lower edge, said slotforming a guide-'way in which said journal member is movably mounted; and a .second plate lying adjacent to v and I completely covering theforward face of said saw, said second plate having a fiat unbroken outer surface and being eiitended around said sawv andl joined to the first mentioned plate at its top and sides to form, with the rst mentionedl plate", a housing for said saw, said housing being open at its vlower edgev to' permit the saw to protrude therefrom. v V

4;. A portable'sawing device comprising a rotating saw; a housing 'therefory formed of a lpairV of spaced plates between which rthev saw is positioned; `a' journal vmember in which said saw is rotatably carried; guide means associated with oneof said plates and in 'which Vsaid journal 'member is movably mounted; and a substantially U-shaped spring Vfor retaining said journal member at one limit of its travelin said guide` means, said spring projecting substantiallyparallel with said plates and 'forming'.a. handley for V5." A portable sawing member movably mounted therein; a saw rol* device comprising a kfra'me'rprovided 'with a' guide way; a journal' tatably'carried by saidjourn'al member.; and

a substantially U-shaped spring rforming a handlefor the device, one end of said spring being-connected with said frame and the other end with said journal member for retaining thev latter at one limit'of its movement in said guide way.` i i 6."`A` sawing device comprising a platelike frame member having a slot extending fromxitscentral region toward one edge; a journal member movably mounted in said slot; arsaw rotatably carried by saidv journal member andv rlying adjacent to said plate member; and asubstantially U-shaped spring having one end connected with said plate member and the other end connected with said journal member 'for retaining the latter at one limit of its movement in said slot.

7. A portable sawing device comprising a frame provided with a guide Way; a journal member movably mounted therein: a saw rotatably carried by said journal member; and a spring for retaining said journal mem- 10 ber at one limit of its travel in said guide Way, said spring projecting to orm ahandle for the device.` e

In testimony whereof I have signed my name to this specification.

GEORGE F. FEISTER. 

